#Need help. O3 causes FC short.
west birch
please post the name of the board, i can see that its a speedybee
gray ingot
speedybee f405 v3
knotty geode
speedybee f405 v3
V4
west birch
knotty geode
Used this for my receiver etc
I didnt solder my VTX as seen up there
Its supposed to be plugged
and the plug pins are all right
Important thing to note
The short only happens 9/10 times
Sometimes even with the O3 connected it does work and power on fully (All 5 beeps)
Now it worked for example
O3 connected and drone powers up
What could this weird stuff be?
serene crescent
What could this weird stuff be?
what smoke stopper do you have?
serene crescent
have you tried the higher current setting? The O3 is a fairly power hungry device, it's possible that when it starts up it just draws enough current on its own to trip the smoke stopper
knotty geode
have you tried the higher current setting? The O3 is a fairly power hungry devic...
I should try 2A current?
serene crescent
ye
knotty geode
worked on the first try
Worked on the second
and hereby already a new record
Could that explain the inconsistency
On why it works sometimes and why not
serene crescent
the O3 can pull like 16-18W on its own
knotty geode
So no shorts
serene crescent
how long it takes for it to start up can change if the smoke stopper trips or not
serene crescent
if it worked just fine with the 2A setting on the smoke stopper and nothing else tripped it, it should be good
knotty geode
Did a power on and off now 5 times no shutoff after the 5th beep
knotty geode
if it worked just fine with the 2A setting on the smoke stopper and nothing else...
Youre amazing!
That might be it
I completely forgot that
My brain instantly went to short
knotty geode
if it worked just fine with the 2A setting on the smoke stopper and nothing else...
Heard a little pop plugging in the battery without the smoke stopper is that normal?
serene crescent
Heard a little pop plugging in the battery without the smoke stopper is that nor...
yes
serene crescent
How?
it's a small arc that comes from the current flowing and charging up the capacitors
knotty geode
it's a small arc that comes from the current flowing and charging up the capacit...
ah wait
Its the same pop that happens in the XT connector right?
The one that can cause little black burn marks?
serene crescent
Its the same pop that happens in the XT connector right?
yes
it is a pop from the XT60